5722-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5722-68-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,2 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5722-68:
(6*5)+(5*7)+(4*2)+(3*2)+(2*6)+(1*8)=99
99 % 10 = 9
So 5722-68-9 is a valid CAS Registry Number.
5722-68-9Relevant articles and documents
STUDIES ON THE TWO-PHASE NITRATION OF SELECTED PHENOLS
Thompson, Malcolm J.,Zeegers, Petrus J.
, p. 2471 - 2474 (2007/10/02)
The two phase nitration of several phenols by aqueous acid, sodium nitrate and diethyl ether, yielded as well as the expected nitro-phenols, a benzoquinone.A variable induction period was observed which could be significantly reduced by added sodium nitrite.